A Power Analysis System for Cryptographic Devices

Abstract:

In order to test the security of cryptographic devices against Side Channel Attacks (SCA), an automatic general-purpose power analysis system (TH-PAS-01) is designed and implemented. TH-PAS-01 is scalable and can be applied to many cryptographic devices when specific modules are installed. Using the system TH-PAS-01, correlation power analysis (CPA) are carried out on an AES chip under two working models: normal and shuffling mode. The security level of the countermeasure provided by the target chip is verified by TH-PAS-01. The experimental results show that the correct key of the AES chip is obtained with around 50,000 power traces when the chip was working under normal mode, while the whole key bits are not obtained with 960,000 power traces when the chip works under shuffling mode. The automatic general-purpose system TH-PAS-01 is feasible for security analysis on power analysis for cryptographic devices.

• Periodical: Advanced Materials Research (Volumes 718-720)
• Pages: 2376-2382
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.718-720.2376
• Online since: July 2013
• Authors: Yan Ting Ren, Li Ji Wu
• Keywords: Correlation Power Analysis, Cryptographic Device, Side Channel Attacks

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